[xiph-rtp] Updated Vorbis and new Theora I-D's

[Luca Barbato]

Tor-Einar Jarnbjo wrote:
> We already discussed using RTSP mechanisms to solve problems with Vorbis 
> over RTP and I think the general consensus was to avoid this. RTSP is 
> just one of many protocols used to setup RTP sessions and using RTSP to 
> solve different problems, makes it impossible to use Vorbis in scenarios 
> where RTSP is not available.

I'm afraid that for every codec that requires some sort of extradata we 
need to think about various ways to support outband reliable 
transmission, given we have already an inband way to provide them that 
could enjoy some sort of redundancy if that is the only way have 
improved reliability.

Using another protocol to ensure the deliver is probably the only 
solution we can suggest. Seems that one solution is to provide an 
external uri where to fetch the extradata. I'm trying to find other 
solution to push (and/or fetch) that extradata. That way if there isn't 
support for rtsp because rtp is used as transport for another 
infrastructure we should think about as many way as possible to provide 
them.

I stated in the latest e-mail the ones that could work and which one 
should the best for a streaming client/server as we currently use them.

Probably for other applications the rtsp solution isn't applicable or 
the http solution is easier since there is a http support already present.

Probably the dual rtp (one udp one tcp) could be a workable solution for 
bare rtp communication.

lu

-- 

Luca Barbato

Gentoo/linux Developer		Gentoo/PPC Operational Manager
http://dev.gentoo.org/~lu_zero